EP0699980B1 - Method for manufacturing a dial - Google Patents

Method for manufacturing a dial Download PDF

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Publication number
EP0699980B1
EP0699980B1 EP94810492A EP94810492A EP0699980B1 EP 0699980 B1 EP0699980 B1 EP 0699980B1 EP 94810492 A EP94810492 A EP 94810492A EP 94810492 A EP94810492 A EP 94810492A EP 0699980 B1 EP0699980 B1 EP 0699980B1
Authority
EP
European Patent Office
Prior art keywords
dial
application
layer
ceramic
metal layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94810492A
Other languages
German (de)
French (fr)
Other versions
EP0699980A1 (en
Inventor
Walter Blösch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
W BLOSCH AG
Bloesch W AG
Original Assignee
W BLOSCH AG
Bloesch W AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by W BLOSCH AG, Bloesch W AG filed Critical W BLOSCH AG
Priority to EP94810492A priority Critical patent/EP0699980B1/en
Priority to AT94810492T priority patent/ATE175784T1/en
Priority to DE59407657T priority patent/DE59407657D1/en
Publication of EP0699980A1 publication Critical patent/EP0699980A1/en
Application granted granted Critical
Publication of EP0699980B1 publication Critical patent/EP0699980B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B45/00Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0076Decoration of the case and of parts thereof, e.g. as a method of manufacture thereof
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00Indicating the time by visual means
    • G04B19/06Dials
    • G04B19/10Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • GPHYSICS
    • G04HOROLOGY
    • G04DAPPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0074Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment
    • G04D3/0092Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment for components of the time-indicating mechanism, e.g. dials

Definitions

  • the present invention relates to a method for the production of a dial, ring or button according to the preamble of claim 1, in particular is made of a colored ceramic dial, with gold reliefs on them.
  • From CH-A-646 571 is also a method for connecting a watch glass with a housing part known, wherein on the glass is vapor-deposited on a metal layer and then one second layer is electroplated onto which a fillet is applied. The uncovered part is then cut off and the glass with the resulting rib in a groove in the Housing part inserted and cast.
  • Signs or decorations on dials, rings or Knopf is neither cited in the script nor suggested.
  • US-A-3 785 143 describes the manufacture of anti-reflective layers on watch glasses in the places, on which there are signs underneath to make them better make visible.
  • a thin layer of metal becomes 2 in a vacuum evaporated, for example from chrome or nickel, which the Surface makes it electrically conductive, so that subsequently a layer can be applied galvanically, whereby this conductive metal layer for perfect adhesion worries.
  • the galvanically applied layer 3 consists for example made of gold with a layer thickness of up to 20 ⁇ m.
  • the etched-out characters 6 become like this edited, i.e. polished or satin that the sharp Edges 4 are rounded, creating the relief effect is significantly increased.
  • a Anti-reflective coating or an interference layer to a to achieve a special optical effect. It can either the entire dial can be coated, or selectively only individual parts of it. Strong in places reduced reflection can create a large contrast between the surface and the applied signs which makes the look much stronger.
  • This method is particularly advantageous if colored ceramic is used so that it is now possible is, dials in color combination and tints produce that previously only by using paints were possible. For example, it is possible to know white colored ceramics to use on the gold sign are appropriate; or other color combinations with the different materials mentioned, the Platelets usually before vapor deposition of the first Layer were polished. As mentioned at the beginning, this brings Process special advantages in the production of high-quality dials, but can also be opened other jewelry such as rings or buttons from the perform mentioned materials.
  • the conductive Metallization layer can besides chrome and nickel other metals, for example copper, can be used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
  • Physical Vapour Deposition (AREA)
  • External Artificial Organs (AREA)

Abstract

The clock face has a nonmetallic underlay (1) of ceramic or natural or synthetic precious stone. The underlay is first covered with a thin metallic film (2) of e.g. Cr or Ni by vacuum deposition to form an electrically conductive surface. The surface has 20 microns of e.g. Au (3) applied over it galvanically. Figures or decorative patterns (6) are then printed or exposed and the uncovered surface is etched away with a suitable soln. The remainder is polished or glazed so that edges (4) are rounded to improve the cameo effect, and an anti reflection or interference coating (5) is vapour-deposited.

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Zifferblattes, Ringes oder Knopfes gemäss Oberbegriff von Patentanspruch 1, wobei insbesondere an ein Zifferblatt aus eingefärbter Keramik gedacht ist, auf dem Reliefzeichen aus Gold angebracht sind.The present invention relates to a method for the production of a dial, ring or button according to the preamble of claim 1, in particular is made of a colored ceramic dial, with gold reliefs on them.

Das bekannte Anbringen nach dem Applike-Verfahren von Ziffern oder andere Reliefzeichen auf Zifferblätter aus Keramik oder natürlichem oder künstlichem Edelstein ist sehr aufwendig, indem an den Ziffern Füsschen vorgesehen sein müssen, die in Löcher im Zifferblatt eingesteckt werden, wobei das Bohren der Löcher in die spröden Zifferblätter im allgemeinen sehr aufwendig ist, siehe beispielsweise CH-A-305 167.The known application by the Applike method from Numerals or other relief characters on dials Ceramic or natural or artificial gemstone very complex, provided by feet on the digits must be plugged into holes in the dial being, drilling the holes in the brittle Dials are generally very expensive, see for example CH-A-305 167.

Die Herstellung eines Reliefdekors auf eine durchsichtige Unterlage ist aus der CH-A-657 742 des gleichen Anmelders bekannt, wobei unter anderem auch erwähnt wird, dass die Unterlage ein Zifferblatt aus Saphirglas sein kann. Bei allen in dieser Patentschrift aufgeführten Beispiele ist die Unterlage mit einer Reflexionsschicht versehen.The production of a relief decoration on a transparent Document is from CH-A-657 742 by the same applicant known, among other things it is mentioned that the Base can be a sapphire crystal dial. At is all examples listed in this patent provide the base with a reflective layer.

Bei der Anwendung solcher Techniken und insbesondere auch bei der Herstellung von Zifferblättern nach konventioneller Art ergeben sich ausserdem häufig ästhetische Probleme infolge geringem Kontrast zwischen Untergrund und dem Dekor.When using such techniques and in particular also in the manufacture of dials according to conventional In addition, there are often aesthetic problems due to low contrast between the surface and the Decor.

Aus der CH-A-646 571 ist ferner ein Verfahren zum Verbinden eines Uhrenglases mit einem Gehäuseteil bekannt, worin auf das Glas eine Metallschicht aufgedampft und darauf eine zweite Schicht aufgalvanisiert wird, auf die ein Filet aufgebracht wird. Der unbedeckte Teil wird dann abgeäzt und das Glas mit der so entstandenen Rippe voran in eine Nut im Gehäuseteil eingelegt und eingegossen. Die Herstellung von Zeichen oder Verzierungen auf Zifferblätter, Ringe oder Knöpfe ist in der Schrift weder zitiert noch nahegelegt.From CH-A-646 571 is also a method for connecting a watch glass with a housing part known, wherein on the glass is vapor-deposited on a metal layer and then one second layer is electroplated onto which a fillet is applied. The uncovered part is then cut off and the glass with the resulting rib in a groove in the Housing part inserted and cast. The production of Signs or decorations on dials, rings or Knopf is neither cited in the script nor suggested.

Die US-A-3 785 143 schliesslich beschreibt die Herstellung von Antireflexionsschichten auf Uhrengläser an den Stellen, an denen darunter Zeichen angebracht sind, um diese besser sichtbar zu machen.Finally, US-A-3 785 143 describes the manufacture of anti-reflective layers on watch glasses in the places, on which there are signs underneath to make them better make visible.

Es ist von diesem Stand der Technik ausgehend Aufgabe der vorliegenden Erfindung, ein Verfahren zur Herstellung eines Zifferblattes, Ringes oder Knopfes mit einer Unterlage aus einem Keramik- oder Edelsteinplättchen anzugeben, das das aufwendige Bohren solcher Plättchen und Bestücken mit Ziffern mit Füsschen vermeidet und ausserdem ein verbessertes ästhetisches Aussehen bewirkt. Ein Verfahren, das diese Aufgabe löst, ist in Patentanspruch 1 definiert.Starting from this prior art, it is the task of present invention, a method for producing a Dial, ring or button with a base to indicate a ceramic or gemstone tile that the complex drilling of such platelets and assembling Avoids numerals with feet and also an improved one aesthetic appearance. A process that this Solves the problem is defined in claim 1.

Die Erfindung wird im folgenden anhand einer einzigen, schematischen Figur näher erläutert, wobei links die Schichten vor und rechts nach dem Abätzen dargestellt sind.The invention is described below with the aid of a single, schematic figure explained in more detail, the left Layers before and right after etching are shown.

Auf die Unterlage 1, die in vorliegendem Beispiel ein Plättchen aus einem nicht metallischen Material, z.B. Keramik oder natürlicher oder synthetisch hergestellter Edelstein, wird im Vakuum eine dünne Metallschicht 2 aufgedampft, beispielsweise aus Chrom oder Nickel, die die Oberfläche elektrisch leitend macht, so dass anschliessend eine Schicht galvanisch aufgetragen werden kann, wobei diese leitende Metallschicht für eine einwandfreie Haftung sorgt. Die galvanisch aufgetragene Schicht 3 besteht beispielsweise aus Gold mit einer Schichtdicke bis 20 µm.On the pad 1, which in the present example Platelets made of a non-metallic material, e.g. Ceramic or more natural or synthetic Gem, a thin layer of metal becomes 2 in a vacuum evaporated, for example from chrome or nickel, which the Surface makes it electrically conductive, so that subsequently a layer can be applied galvanically, whereby this conductive metal layer for perfect adhesion worries. The galvanically applied layer 3 consists for example made of gold with a layer thickness of up to 20 µm.

Auf diese Goldschicht werden mit einem Abdecklack oder Fotolack die Ziffern und eventuell ein weiteres Dekor aufgedruckt bzw. belichtet und anschliessend wird mit einer geeigneten Lösung die nicht bedeckte Fläche abgeätzt. Da die Unterlage aus Keramik oder Edelstein besteht, ist die Möglichkeit gegeben, ausser Gold auch andere Metalle oder Edelmetalle aufzubringen, da solche Unterlagen von der Aetzflüssigkeit nicht angegriffen werden.On this gold layer be covered with a varnish or Photoresist the numbers and possibly another decor printed or exposed and then with a suitable solution, the uncovered area is etched away. There the base is made of ceramic or gemstone, is the Possibility given, other than gold or other metals Bring up precious metals, since such documents from the Acid liquid are not attacked.

Anschliessend werden die herausgeätzten Zeichen 6 derart bearbeitet, d.h. poliert oder satiniert, dass die scharfen Kanten 4 abgerundet werden, wodurch der Reliefeffekt wesentlich erhöht wird. Schliesslich wird darauf eine optische Schicht 5 aufgedampft, in der Regel ein Antireflexbelag oder eine Interferenzschicht, um einen speziellen optischen Effekt zu erzielen. Dabei kann entweder das ganze Zifferblatt beschichtet werden, oder selektiv nur einzelne Stellen davon. Bei den Stellen stark verminderter Reflexion kann ein grosser Kontrast zwischen dem Untergrund und den aufgebrachten Zeichen erzielt werden, wodurch das Aussehen stark gewinnt.Then the etched-out characters 6 become like this edited, i.e. polished or satin that the sharp Edges 4 are rounded, creating the relief effect is significantly increased. Eventually there will be one evaporated optical layer 5, usually a Anti-reflective coating or an interference layer to a to achieve a special optical effect. It can either the entire dial can be coated, or selectively only individual parts of it. Strong in places reduced reflection can create a large contrast between the surface and the applied signs which makes the look much stronger.

Dieses Verfahren ist insbesondere dann vorteilhaft, falls eingefärbte Keramik verwendet wird, so dass es nun möglich ist, Zifferblätter in Farbkombination und Tönungen herzustellen, die vorher nur mittels Verwendung von Lacken möglich waren. So ist es beispielsweise möglich, weiss eingefärbte Keramik zu verwenden, auf die Goldzeichen angebracht sind; oder auch andere Farbkombinationen mit den unterschiedlichsten genannten Materialien, wobei die Plättchen in der Regel vor dem Aufdampfen der ersten Schicht poliert wurden. Wie eingangs erwähnt, bringt dieses Verfahren besondere Vorteile bei der Herstellung von hochwertigen Zifferblättern, lässt sich aber auch auf andere Schmuckstücke wie Ringe oder Knöpfe aus den erwähnten Materialien durchführen.This method is particularly advantageous if colored ceramic is used so that it is now possible is, dials in color combination and tints produce that previously only by using paints were possible. For example, it is possible to know white colored ceramics to use on the gold sign are appropriate; or other color combinations with the different materials mentioned, the Platelets usually before vapor deposition of the first Layer were polished. As mentioned at the beginning, this brings Process special advantages in the production of high-quality dials, but can also be opened other jewelry such as rings or buttons from the perform mentioned materials.

Als Material für die Herstellung der leitenden Metallisierungsschicht können ausser Chrom und Nickel noch andere Metalle, beispielsweise Kupfer, verwendet werden. Ausserdem sind auch andere Bearbeitungsvorgänge als polieren oder satinieren möglich, und es können noch weitere Beschriftungen oder dergleichen mittels Stempeln durchgeführt werden.As a material for the production of the conductive Metallization layer can besides chrome and nickel other metals, for example copper, can be used. In addition, other processing operations than polishing or satinizing possible, and still can further inscriptions or the like by means of stamping be performed.

Claims (4)

  1. A method for the manufacture of a dial, a ring, or a button having a non-metallic support, more particularly of ceramic, characterised by:
    application of a metal layer by vapour-deposition
    application of a metal or precious metal layer
    application of the characters and possibly of another decoration in the form of a covering layer
    etching of the uncovered areas
    application by vapor-deposition of an optical coating, more particularly an antireflex coating, to at least a part of the surface.
  2. Method for the manufacture of a dial according to claim 1, characterised in that a small polished plate of a coloured ceramic material or of a natural or artificial precious stone is used as a support.
  3. Method according to claim 1 or 2, characterised in that the precious metal layer is an electroplated gold layer.
  4. Method according to one of claims 1 to 3, characterised in that after being etched out, the relief characters and the decoration are treated, e.g. polished or satin-finished.
EP94810492A 1994-08-29 1994-08-29 Method for manufacturing a dial Expired - Lifetime EP0699980B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP94810492A EP0699980B1 (en) 1994-08-29 1994-08-29 Method for manufacturing a dial
AT94810492T ATE175784T1 (en) 1994-08-29 1994-08-29 METHOD FOR PRODUCING A DIAL
DE59407657T DE59407657D1 (en) 1994-08-29 1994-08-29 Process for making a dial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94810492A EP0699980B1 (en) 1994-08-29 1994-08-29 Method for manufacturing a dial

Publications (2)

Publication Number Publication Date
EP0699980A1 EP0699980A1 (en) 1996-03-06
EP0699980B1 true EP0699980B1 (en) 1999-01-13

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ID=8218305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810492A Expired - Lifetime EP0699980B1 (en) 1994-08-29 1994-08-29 Method for manufacturing a dial

Country Status (3)

Country Link
EP (1) EP0699980B1 (en)
AT (1) ATE175784T1 (en)
DE (1) DE59407657D1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH401767A (en) * 1963-10-17 1965-10-31 J P Robert & Cie Method of decorating a timepiece
JPS5044126Y1 (en) * 1970-12-21 1975-12-16
CH636238GA3 (en) * 1979-04-11 1983-05-31 Method for producing parts of timepieces

Also Published As

Publication number Publication date
EP0699980A1 (en) 1996-03-06
ATE175784T1 (en) 1999-01-15
DE59407657D1 (en) 1999-02-25

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